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一 概述 郑州铝厂自投产以来,一直使用换热效果较差的冷却塔冷却分解前的铝酸钠溶液,分解初温较高。1972年4月第一次试用板式热交换器,以后于1973年到1975年又断断续续开停三次,虽然都因两相压力不稳、板片单面受压及流道中杂物堵塞、结疤等造成打垫子而停车,运行时间较短,但却从中可明显看出板式热交换器具有传热效率较高的优点,能起到使
An overview of aluminum plant in Zhengzhou since it has been put into operation, has been using the cooling effect of poor cooling tower cooling prior to the decomposition of sodium aluminate solution, a higher initial decomposition temperature. In 1972 April the first trial of plate heat exchanger, and later in 1973 to 1975 and intermittent open three times, although both because of two-phase pressure instability, the pressure plate and the debris flow blockage, scarring Etc. caused by playing mat and parking, running time is short, but it can be clearly seen from the heat exchanger plate heat exchanger has the advantage of higher efficiency, can play